I'm not sure they lived long enough to worry about it....if you only make it to 25 or 30 and are considered old maybe they just attributed it to dementia like we do with our elders today?

Its Interesting to me that we essentially exempt a group of people from rational thought just due to age.

I'm thinking the manic impulse would lead to chopping wood or hunting or something else productive just because there was so little to do.....there was likely a seasonality to it with planting and other farmwork in the spring and more depression in the winter.